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(No Modeh) -J. R. STUNKARD, MACHINE FOR MANIPULATING THE NUTS 0F TIREBOLTS.

, No. 439.257. Patnted 001;. 28, 1890.

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JOHN R: STUNKARD,' OF BRAZIL, ASSIGNOR TO TIMOTHY L. BOSART, OF

' INDIANAPOLIS, INDIANA.

MACHINE FOR MANIPU LATIN G THE NUTS OF TIRE-BOLTS.

SPECIFICATION forming part of Letters Application filed August 26, 1890i To all whom it may concern.-

Be it known that I, JOHN R. STUNKARD, a citizen of the United States,residing at Brazil, in the county of Clay and State of Indiana, haveinvented certain new and useful In1-' provements in Machines forManipulating the Nuts of Tire-Bolts, of which the following is which aremade a part hereof, and on which similar letters of reference indicatesimilar parts, Figure 1 is a top or plan view of a ma chine embodying mysaidinvention, a portion of avehicle'wheel being also shown by means ofdotted lines; Fig. 2, a side elevation of such a machine; Fig. 3, alongitudinal sectional view on the dotted line 8 3, in Fig. 1, throughthe machine and the wheel being operated upon; Fig. 4, a detailperspective view of the wrench and the parts immediatelyadjacentthereto, and Fig. 5 a transverse sectional view on the dotted line 5 5in Fig. 2.

In said drawings, the portions marked A represent the stationary part ofthe frame work; B, the sliding or adjustable part of the framework; 0,the wrench portion of the machine; D, a crank-shaft by which said wrenchportion is driven,-and E a lever by which the wheel isheld in properposition while the nuts to the tire-bolts are being operated upon.

The frame portion A is usually a plain bar, as shown, and should besecured fixedly upon a bench or frame in convenient position for use. Itcarries an upwardly-projecting stud A, which enters the hole in the hubof the wheel, and upon which said wheel is turned, bringing the nutssuccessively into position to be operated upon in using the machine.

The frame portion B is similar in general form to the frame portion Aupon which it rests. It is secured to said frame portion A by brackets19, which extend down around the edges thereof, andwhich form slides bywhich Patent No. 439,257, dated October as, 1890.

. SerialNo. 363,139. (NomodeL) the two frame portions are adj ustablysecured together. It is provided with the several bearings B, B ,and Bin whichthe'wrench-shaft and the crank-shaft are mounted. a bearing 15,in which the lower end of-Y the lever E is pivoted. 1

' The rench 0 is a socket-wrench;: and its shaft 0 rests in bearings inthe 'uppenends of the bearing-blocks B and'B -J- itis-separable fromits"shaft, and by simply-providing several of'these wrench portionsofiifidifferent sizes and exchanging onefor' another, as occasion mayrequire, the same machine may be sized bolts. The'socketin the wrenchextends back some distance beyond its point, and openings extend outfrom the bottom of the socket through the sides of sufficient size topermit nuts of the size which the wrench is adapted to operate to passthrough. This enables the person operating the machine to remove aseries of nuts without stopping to take the nuts out of the wrench, assaid nuts will simply be forced back to the bottom of the socket bysucceeding nuts and drop out of these holes to the floor or into aconvenient receptacle provided to receive them.

The crank-shaft D is an ordinary crankshaftmounted in bearings in thebearingblocks B, B and B and has an ordinary hand-crank D, mounted onits outer end, by which it is driven. Near its inner end, between thebearing-blocks B and B it is provided with a spur-pinion D which engageswith a similar spur-pinion C on the wrenchshatt O, and thus drives saidwrench-shaft and the wrench.

The lever E is pivoted at its lower end by a pivot e to thebearing-block B and extends up past the rim of the wheel when themachine is in operation, and is adapted to be held against the rim ofsaid wheel, thus holding the nut being operated on firmly intoengagement with the wrench. It is provided with a cross-arm orprojecting portion E, which is adapted to extend out a short distanceoneach side over the side of the rim of the wheel, thus holding said wheelin parallel relation to-the frame of the machine, as Well as in closerelation with the wrench mechanused for manipulating the nuts ofdifierent.

It also has 2. The combination, in a machine for ma-' nipulating thenuts of tire-bolts, of a frame having a stud for the hub of the wheel,mechanism forturning the nut, and a lever whereby the rim of the wheelmay be held into close relation with said mechanism, substantially asset forth.

3. The combination, in a machine for manipulating the nuts oftire-bolts, of a wrenchshaft, a socket-wrench mounted thereon andprovided with a deep socket having holes extended out through its sidesat the bottom, and mechanism for operating the same.

4. The combination, with mechanism for manipulating the nuts oftire-bolts, of a pivoted lever secured to the same frame as saidmechanism and provided with a cross-arm adapted to extend out over theside of the wheel-rim and hold, said wheel-rim into parallel relationwith the frame, substantially as set forth.

5. The combination, in a machine for ma nipulating the nuts oftire-bolts, of two frame portions adjustable in relation to each other,a stud for the wheel-hub upon one of said frame portions, and mechanismfor manipulating the nut upon the other frame portion consisting of awrench-shaft, a socket-wrench on said shaft, a crank-shaft gearingconnecting said two shafts, and a crank upon said crank-shaft,substantially as set forth.

6. The combination of the two frame portions A and B, adjustablerelatively to each other, the shafts C and D, mounted in bearings on theframe part B and geared together, a socket-wrench on said shaft 0, acrank on said shaft D, and a lever E for holding the Wheel-rim againstthe wrench, the whole forming a machine for manipulating the nuts oftire-bolts, substantially as shown and described.

In witness whereof I have hereunto set my hand and seal, at Brazil,Indiana, this 14th day of August, A. D. 1890.

\Vitnesses:

ROBERT FISHER, JAMES A. MoAULT.

